Aquarium heater



Sept. 29, 1931. \F KUMP AQUARIUMY HEATER 2 Sheets-SheeA 1 Filed May ze,195o gmx/nio@ 71T 1T ump Sept. 29, 1931. F. KUMP AQUARIUM HEATER FiledMay 28, 1930 V."2 Sheets-Sheer. 2

Petented Sept. 29, 1931 UNITED STATES PATENT OFFICE FERDINAND XUMP, FGLENDALE, NEW YORK AQUARIUM HEATER Application med nay as, 1980. serialne. 456,636.

This invention aims to provide novel means for suspending a-heatingelement in an aquarium, land to provide a novel form of electricalheater.

It is Within the province of the disclosure which will appear as thedescription proo Figure 7 ceeds, the invention resides in thecombination and arrangement of parts and in the details of constructionhereinafter described and claimed, it being understood that changes maybe made in the precise embodiment of the invention herein disclosed,within the scope of what is claimed, without departing from the spiritof the invention. In the accompanying drawings: Figure 1 shows inelevation, a device of the class described, mounted in an aquarium;Figure 2 is a longitudinal sectional view showing the stem of the casingand parts associated therewith; Figure 3 is an elevation of the switch;Figure 4 is a longitudinal section through the body of the device;Figure 5 is a cross section on the line 5--5 of Figure 4; Figure 6 is across section on the line 6-6 of Figure 4, parts being in elevation; isa section on the line 7-7 of Fi re 4.

he device forming the subject matter of this application comprises acasing 1 which is of inverted T-shape, the casing preferably being madeof metal. The casing 1 includes a tubular body 2, caps 3 being mountedon the ends of the body. Intermediate its ends, the body 2 has a hollowprojection m 4 supplied with a reduced cuff 5 in which is secured atubular stem 6, the stem 6 and the body 2 being rigid. A flexible pipe 7of any desired length is mounted on the upper end of the stem 6 and maybe referred to as an extension of the stem. Y

Within the body 2 are located the end sections 8 and the intermediatesection 9 of a core, which may be fashioned from porcelain, or any otherequivalent material. The end sections 8 abut at their inner ends againstthe intermediate section 9.

In the outer ends of the end sections 8y are formed recesses 10. Attheir extremities, the end sections 8 have slots 11 leading inwardly tothe recesses. 10. The end sections 8 have axial bores 12 formingshoulders 14. The intermediate section 9 has a bore 15 in alignment withthe bores 12 of the end sections 8.

Retainers 16, preferably made of metal, are mounted removably in therecesses 10. A tie 34 extends through the bores 12 and 15 and isthreaded at its ends, as shown at 17, in the inner ends of the retainers16,

the retainers being drawn against the shoulders 14 of the end sections 8of the core, and the constituent sections 8 and 9 of the core beingthereby bound closely together, Binding screws 18 are threaded into theends of the retainers 16. The retainers 16 are somewhat shorter than therecesses 10,

so that in the outer ends of the recesses, there are spaces 19 for theheads of the binding .screws 18.

The ends 2O of a resistance wire are engaged by the heads of the bindingscrews 18 and are held against the ends of the retainers 16. Theresistance wires extend outwardly through the notches or slots 11- andare formed into coils 21 about the end sections 8 of the core. The coils21 may be received within tubular coverings 22.

Near to their inner ends, the sections 8 of the core are provided withcircumferential grooves 23 into which extend conductors 24 joined to theinner ends of the coils 21. The conductors 24 extend through theprojection 4 on the body 2, and through the stem 6 and the pipe 7, theconductors being enclosed within a flexible sheath 26, a switch orrheostat 27 being interposed in the sheath 26 and in the conductors 24.The switch 27 has not been described in detail because I am aware of thefact that any kind of :in electrical switch cannot be claimed in thcsame application with an aquarium heater. i

Moreover, various sorts of switches may be used, at the will of anoperator, and I do not wish to bind myself to the use of any particularkind of switch. The core 8--9 and parts associated with it are containedwithin a refractory packing'25, made of asbestos, if desired, thepacking being located within the body 2 and extending up into the prlection 4 of the body, as clearly shown in igures 4 and 5 of thedrawings.

The numeral 29 marks a suspension member, including a split sleeve 30disposed about the stem 6 of the casing 1. Thev sleeve 30 carries anoffset hook 31. The sleeve 30 has a friction hold on the stem v6. It ispossible, therefore,- to adjust 4the suspension member 29 longitudinallyof the stem 6, to regulate the depth of the body 2 1n the water of theaquarium 33. Moreover, since the sleeve 30 has a friction hold on thestem 6, the suspension member 29 may4 be rotated on the-stem to disposethe hook 31 in any desired position, dependingupon how the device is tobe mounted in the aquarium 33. IIf it is desired to place the body 3near the center of the aquarium 33, then the suspension member 29 may beengaged with a bar 32 laid across .the upper edge of the aquarium 33. Itis possible, however, to dispense with the bar 32, the suspension member29 being turned through an arc of ninety degrees from the position ofFigure 1. Under such circumstances, the hook 31 of the suspension member29 may be engaged over the edge 35 of the wall of the aquarium.

By a proper manipulation of the switch or rheostat 27, the currentsupplied vfrom a source of electrical energy maybe regulated and thedegree of heat governed accordingly. The circuit is simple. It includesthe conductors 24, the binding screws 18, the metal retainers 16themetal tie rod 34, and thecoils 21 of the-resistance wire.

The device is simple to manufacture and capable of withstanding harduse.v Owing to the particular construction shown in Figure 4 of thedrawings, the article may be assembled readily. All parts, of course,are hermetically joined at'the surface, so that water cannot find itsway into the casing 1.

Having thus'described the invention, what is'claimed is:

1. A device for warming the water in aquaria, comprising a casing ofinverted T- shape, and including a body and a stem joined to the bodyintermediate the ends of lthe body, electrical heaters in the ends ofthe body, the inner ends of the heaters being spaced apart anappreciable distance,

approximating the length of either heater, to afford a cool space at thestem, and a circuit including the heaters, the circuit extendingupwardly through the stem.

2. A device for warming the water in aquaria, comprising a casing ofinverted T- shape, and including a body and a stem joined to the bodyintermediate the ends of the body, a core in the body and made up v ofaligned end and intermediate members, the end members havlng recesses,retamers in the recesses, a tie extended through the intermediate memberand into the end members, the tie being threaded into the retainers tobind the end and intermediate members together,electrical heaters in theends of the body andcarried by the end members of the core, theintermediate member of the core spacing the heaters apart, to aiford'acool space at the stem, the heaters being joined to the retainers, and acircuit including the heaters, the retainers, and the tie, a portion ofthe said circuit being extended upwardly through the stem. Y

In testimony that I claim .the foregoing as my own, I have heretoaiiixed my signa-

